Blog Posts

Introduction

WinBtrfs is a feature-complete IFSD (Installable File System Driver) for NT operating systems, written by Mark Harmstone. This driver is checked into the ReactOS source code for some time already. My main goal for this GSoC project was to implement all missing features (and fix bugs, of course) in ReactOS that prevents booting from BTRFS file system.

Sorry, haven’t written anything for a while. Let me tell you what have been done since last post.

BTRFS boot sector

TL;DR: It works!

I’ve been able to load main bootloader code from freeldr.sys into memory, transfer control to it and get on error message (freeldr.sys can’t find its config file - I haven’t written second-stage BTRFS code yet).

Hi all!
This two weeks I was diving into btrfs structures and on-disk layout. Writing an ASM program from scratch is not that simple so I decided to convert a VirtualBox image with BTRFS filesystem in it to raw file and write a python script to parse and show internal filesystem structures.

It was also useful for understanding how files are stored in FS, because information on btrfs.wiki.kernel.org was not enough for me to understand some corner cases.

KeyWords

[WIN32SS][FONT] Fix font metrics (#713)
Fix vertical alignment and Aspect penalty; improve font penalty system; fixes for Wine tests.
This is an update of #706. See CORE-11536 for more details.
The display of the following programs is fixed... More